CN220229267U - Boiler ignition system process flow optimizing device - Google Patents
Boiler ignition system process flow optimizing device Download PDFInfo
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- CN220229267U CN220229267U CN202321260648.3U CN202321260648U CN220229267U CN 220229267 U CN220229267 U CN 220229267U CN 202321260648 U CN202321260648 U CN 202321260648U CN 220229267 U CN220229267 U CN 220229267U
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- sulfur
- containing methanol
- boiler
- ignition
- valve
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- 230000026676 system process Effects 0.000 title claims description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 484
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 118
- 239000011593 sulfur Substances 0.000 claims abstract description 118
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 111
- 238000003860 storage Methods 0.000 claims abstract description 57
- 238000010992 reflux Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000000889 atomisation Methods 0.000 claims abstract description 8
- 239000002283 diesel fuel Substances 0.000 claims description 27
- 238000005406 washing Methods 0.000 claims description 9
- 238000005457 optimization Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims 2
- 239000005864 Sulphur Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 3
- 239000001760 fusel oil Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000012938 design process Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Feeding And Controlling Fuel (AREA)
Abstract
The utility model discloses a process flow optimizing device of a boiler ignition system, which comprises a boiler (1), a sulfur-containing methanol storage tank (2) and a sulfur-containing methanol boiler conveying pump (3) connected with an outlet of the sulfur-containing methanol storage tank (2), and is characterized in that a sulfur-containing methanol boiler removing pipeline (4) behind the sulfur-containing methanol conveying pump (3) is provided with a sulfur-containing methanol ignition valve (5) and a sulfur-containing methanol reflux valve (6); a sulfur-containing methanol reflux pipeline (9) is arranged behind the sulfur-containing methanol reflux valve (6); the sulfur-containing methanol ignition valve (5) is connected with an ignition gun inlet pipeline (7). The utility model solves the technical problems of high running cost of a boiler system, poor atomization effect of the ignition gun, dangerous sources existing in the system and the like, and has the advantages of safety, high efficiency and energy saving.
Description
Technical Field
The utility model relates to a technological process optimization and transformation device of a coal-to-methanol coal-fired boiler ignition system, in particular to a technological process optimization device of a boiler ignition system, and belongs to the technical field of coal chemical industry.
Background
The first 60 ten thousand tons/year coal methanol production device of our company comprises air separation, coal storage and transportation, gasification, purification, synthesis, rectification, methanol tank area, thermal power, water treatment and other working sections.
The methanol tank area section comprises an intermediate tank area and a finished tank area. Wherein the intermediate tank zone is designed with two 5000m 3 Crude methanol storage tanks of (2) two 1500m 3 Is 800m 3 Is a 500m sulfur-containing methanol storage tank 3 Is a fusel oil storage tank. The finished tank farm is designed with two 30000m 3 Is a finished methanol storage tank. The intermediate tank area stores the crude methanol product of the synthesis section in a crude methanol storage tank and then passes throughAnd (3) delivering the crude methanol in the crude methanol storage tank to a rectification working section by a crude methanol pump to rectify the crude methanol, storing the obtained refined methanol product in a refined methanol storage tank, storing the obtained fusel oil in the fusel oil storage tank, and returning to the crude methanol storage tank to rectify again if the rectified product is unqualified. And receiving the sulfur-containing methanol from the low-temperature methanol washing system of the purification section, and supplementing refined methanol to the low-temperature methanol washing system. The refined methanol in the refined methanol storage tank can be pumped to a finished product methanol storage tank, a sulfur-containing methanol storage tank or a low-temperature methanol washing system through the refined methanol. The sulfur-containing methanol storage tank receives the sulfur-containing methanol from the low-temperature methanol washing system and the refined methanol pumped from the refined methanol, and can send the sulfur-containing methanol of the sulfur-containing methanol storage tank to the low-temperature methanol washing system. The finished product tank area is responsible for receiving the refined methanol products from the refined methanol storage tank in the middle tank area and for warehousing the refined methanol products.
The thermodynamic working section boiler system supplies five-level steam of 9.8MPa, 4.0MPa, 2.5MPa, 1.0MPa and 0.5MPa to other working sections through the coal-fired boiler. The boilers are designed to be two-split and one-split, each boiler is provided with three coal mills, and the three coal mills are designed to be two-split and one-split. Each boiler can provide 180t/h of superheated steam, is a pulverized coal boiler, is designed to be ignited by diesel oil and is heated, and four ignition guns are arranged. Is provided with three 200m 3 The diesel oil storage tank, a diesel oil unloading pump, two diesel oil delivery pumps and other supporting facilities, and dust removal, desulfurization and denitrification and other environmental protection facilities.
The prior design process flow of the company has the problems that sulfur-containing methanol cannot be reasonably utilized, the ignition and temperature rise operation cost of a boiler is high, the ignition gun is not fully combusted, and the like, and the danger source and the safety risk of a diesel oil storage tank are also present. There is a need to solve the above problems by process flow optimization and modification.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the process flow optimizing device of the boiler ignition system, which solves the technical problems of high operation cost and insufficient combustion of the original boiler ignition system, and has the characteristics of reducing the system hazard source, reducing the equipment maintenance cost and improving the utilization rate of sulfur-containing methanol.
The technical problems to be solved by the utility model are realized by the following technical scheme:
the system comprises a boiler, a sulfur-containing methanol storage tank, and a sulfur-containing methanol boiler delivery pump connected with an outlet of the sulfur-containing methanol storage tank, wherein a sulfur-containing methanol ignition valve and a sulfur-containing methanol reflux valve are arranged on a sulfur-containing methanol boiler removal pipeline behind the sulfur-containing methanol delivery pump; a sulfur-containing methanol reflux pipeline is arranged behind the sulfur-containing methanol reflux valve; and the sulfur-containing methanol ignition valve is connected with an inlet pipeline of the ignition gun.
Preferably, a sulfur-containing methanol boiler reflux hand valve is arranged behind the sulfur-containing methanol reflux pipeline; the sulfur-containing methanol boiler reflux hand valve is connected with an inlet pipeline of a sulfur-containing methanol storage tank; and an inlet pipeline of the sulfur-containing methanol storage tank is connected with the sulfur-containing methanol storage tank.
Preferably, the compressed air A from the air separator is connected with the inlet pipeline of the ignition gun through a compressed air atomization valve; the sulfur-containing methanol ignition valve is connected with the compressed air atomization valve and the ignition gun through the ignition gun inlet pipeline.
Preferably, the diesel oil boiler comprises a line structure which is connected with the sulfur-containing methanol ignition valve and an ignition gun inlet pipeline and consists of a deactivated diesel oil storage tank, a diesel oil unloading pump, a diesel oil boiler delivery pump, a diesel oil ignition valve and a diesel oil return valve; the diesel oil unloading pump is connected with a diesel oil pipeline from a diesel oil tank truck E.
Preferably, a sulfur-containing methanol pipeline connected with the low-temperature methanol washing system B and a refined methanol pipeline connected with the refined methanol storage tank C are connected on a pipeline between the sulfur-containing methanol storage tank inlet pipeline and the sulfur-containing methanol storage tank; and the pipeline at the outlet end of the sulfur-containing methanol storage tank is also connected with a sulfur-containing methanol low-temperature methanol removing and washing system D.
Through the technical scheme, the utility model has the following beneficial effects:
1. the utility model has the beneficial effect of reducing the ignition and temperature rise operation cost of the boiler.
The prices of diesel oil and refined methanol in the Baozhen city on the day of 2023, 2 and 4 are calculated as examples:
price of diesel oil: 8840 yuan/ton, refined methanol price: 2430 yuan/ton. The combustion heat value of diesel oil is as follows: 3.3X107 KJ/t, the combustion heat value of the refined methanol is: 1.9X107 KJ/t.
(3.3×107 KJ/t/1.9×107KJ/t×2430 yuan/ton)/(8840 yuan/ton=47.7%)
From the above data, it is possible to: the utility model can save the ignition and heating operation cost of the boiler by about 47.7 percent after optimizing the process flow.
2. By adding compressed air before the boiler ignition gun, the ignition gun has better atomization effect, the ignition fuel burns more fully, the combustion is more stable, the fuel is saved, and the tail gas treatment pressure is reduced.
3. After the process flow is optimized, 3 200m of the process flow is stopped 3 The diesel oil storage tank and the matched diesel oil unloading pump greatly reduce the risk factors and risk hidden dangers of the system and also reduce the operation and maintenance cost of equipment.
4. The prior sulfur-containing methanol in the original design cannot be reasonably utilized, and the sulfur-containing methanol is well utilized after the process flow is optimized.
Drawings
FIG. 1 is a schematic flow chart of the utility model
Numbering in the figures: the device comprises a 1-boiler, a 2-sulfur-containing methanol storage tank, a 3-sulfur-containing methanol delivery pump, a 4-sulfur-containing methanol boiler removal pipeline, a 5-sulfur-containing methanol ignition valve, a 6-sulfur-containing methanol reflux valve, a 7-ignition gun inlet pipeline, an 8-ignition gun, a 9-sulfur-containing methanol reflux pipeline, a 10-sulfur-containing methanol boiler reflux hand valve, a 11-sulfur-containing methanol storage tank inlet pipeline, a 12-compressed air atomizing valve, a 13-diesel oil storage tank, a 14-diesel oil boiler delivery pump, a 15-diesel oil ignition valve, a 16-diesel oil reflux valve and a 17-diesel oil unloading pump.
Detailed Description
The process flow optimizing device of the boiler ignition system shown in fig. 1 comprises a boiler 1, a sulfur-containing methanol storage tank 2 and a sulfur-containing methanol boiler delivery pump 3, wherein the sulfur-containing methanol delivery pump 3 is arranged at the outlet of the sulfur-containing methanol storage tank 2, and a sulfur-containing methanol ignition valve 5 and a sulfur-containing methanol reflux valve 6 are arranged on a sulfur-containing methanol boiler removal pipeline 4 behind the sulfur-containing methanol delivery pump 3. A sulfur-containing methanol reflux pipeline 9 is arranged behind the sulfur-containing methanol reflux valve 6, a sulfur-containing methanol boiler reflux hand valve 10 is arranged behind the sulfur-containing methanol reflux pipeline 9, the sulfur-containing methanol boiler reflux hand valve 10 is connected with a sulfur-containing methanol storage tank inlet pipeline 11, the sulfur-containing methanol storage tank inlet pipeline 11 is connected with the sulfur-containing methanol storage tank 2, and the sulfur-containing methanol storage tank is connected with an ignition gun inlet pipeline 7 behind the sulfur-containing methanol ignition valve 5; compressed air from the air separator is connected to the ignition gun inlet line 7 via a compressed air atomizing valve 12. The sulfur-containing methanol ignition valve 5 and the compressed air atomization valve 12 are connected with the ignition gun 8, so that emergency starting when the ignition temperature of the boiler 1 rises and the fuel coal is interrupted is realized.
The operation process of the utility model is as follows:
when the boiler needs to be ignited and heated, the sulfur-containing methanol in the sulfur-containing methanol storage tank 2 is pressurized by the sulfur-containing methanol delivery pump 3 and then sequentially delivered to the ignition gun 8 through the sulfur-containing methanol boiler pipeline 4 and the sulfur-containing methanol ignition valve 5, the sulfur-containing methanol reflux valve 6 is properly closed, the sulfur-containing methanol pressure is increased to the set pressure, and then compressed air delivered by the compressed air atomization valve 12 pressurizes and atomizes the sulfur-containing methanol at the ignition gun for ignition and combustion. The ignition and temperature rise process of the boiler 1 is realized.
During normal operation of the boiler, the sulfur-containing methanol ignition valve 5 is closed, sulfur-containing methanol in the sulfur-containing methanol storage tank 2 is pressurized by the sulfur-containing methanol delivery pump 3 and then is delivered to the sulfur-containing methanol ignition valve 5 through the sulfur-containing methanol removal boiler pipeline 4, and then is returned to the sulfur-containing methanol storage tank 2 through the sulfur-containing methanol reflux valve 6, the sulfur-containing methanol reflux pipeline 9, the sulfur-containing methanol boiler reflux hand valve 10 and the sulfur-containing methanol storage tank inlet pipeline 11 in sequence, so that the whole system is in a standby state, when the boiler is in a coal breakage condition, the sulfur-containing methanol ignition valve 5 can be opened at the first time, the sulfur-containing methanol reflux valve 6 is properly closed to deliver the sulfur-containing methanol to the ignition gun 8, and compressed air delivered through the compressed air atomization valve 12 is used for pressurizing and atomizing the sulfur-containing methanol at the ignition gun 8 to ignite and support combustion, so that the phenomenon that the boiler is stopped due to the coal breakage is prevented.
When the liquid level of the sulfur-containing methanol storage tank 2 is lower, the refined methanol in the refined methanol storage tank is sent to the sulfur-containing methanol storage tank for the boiler 1 to use.
The diesel ignition system is deactivated, the diesel storage tank 3 is effectively isolated and then filled with nitrogen to micro positive pressure protection, the power supplies of the diesel boiler delivery pump 14 and the diesel unloading pump 17 are disconnected, and the diesel boiler delivery pump 14, the diesel unloading pump 17, the diesel ignition valve 15, the diesel return valve 16 and accessory pipelines thereof are effectively isolated.
Claims (5)
1. The technological process optimizing device of the boiler ignition system comprises a boiler (1), a sulfur-containing methanol storage tank (2) and a sulfur-containing methanol delivery pump (3) connected with an outlet of the sulfur-containing methanol storage tank (2), and is characterized in that a sulfur-containing methanol ignition valve (5) and a sulfur-containing methanol reflux valve (6) are arranged on a sulfur-containing methanol boiler removal pipeline (4) behind the sulfur-containing methanol delivery pump (3); a sulfur-containing methanol reflux pipeline (9) is arranged behind the sulfur-containing methanol reflux valve (6); the sulfur-containing methanol ignition valve (5) is connected with an ignition gun inlet pipeline (7).
2. The process flow optimizing device of the boiler ignition system according to claim 1, wherein a sulfur-containing methanol boiler reflux hand valve (10) is arranged behind the sulfur-containing methanol reflux pipeline (9); the sulfur-containing methanol boiler reflux hand valve (10) is connected with an inlet pipeline (11) of a sulfur-containing methanol storage tank; the sulfur-containing methanol storage tank inlet pipeline (11) is connected with the sulfur-containing methanol storage tank (2).
3. The boiler firing system process flow optimization device according to claim 1 or 2, characterized in that compressed air a from air separation is connected to the firing gun inlet line (7) through a compressed air atomizing valve (12); the sulfur-containing methanol ignition valve (5) is connected with the compressed air atomization valve (12) and the ignition gun (8) through the ignition gun inlet pipeline (7).
4. A boiler ignition system process flow optimizing apparatus according to claim 3, characterized by comprising a line structure consisting of a deactivated diesel tank (13), a diesel unloading pump (17), a diesel boiler transfer pump (14), a diesel ignition valve (15), a diesel return valve (16) connected to said sulphur-containing methanol ignition valve (5), an ignition gun inlet line (7); the diesel oil unloading pump (17) is connected with a diesel oil pipeline from the diesel oil tank truck E.
5. The process flow optimizing device of the boiler ignition system according to claim 2, wherein a sulfur-containing methanol pipeline connected with a low-temperature methanol washing system B and a refined methanol pipeline connected with a refined methanol storage tank C are connected on a pipeline between the sulfur-containing methanol storage tank inlet pipeline (11) and the sulfur-containing methanol storage tank (2); and the pipeline at the outlet end of the sulfur-containing methanol storage tank (2) is also connected with a sulfur-containing methanol low-temperature methanol washing system D.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320578580 | 2023-03-22 | ||
| CN2023205785807 | 2023-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220229267U true CN220229267U (en) | 2023-12-22 |
Family
ID=89195533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321260648.3U Active CN220229267U (en) | 2023-03-22 | 2023-05-23 | Boiler ignition system process flow optimizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220229267U (en) |
-
2023
- 2023-05-23 CN CN202321260648.3U patent/CN220229267U/en active Active
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